Advisory Details

August 9th, 2016

Microsoft Windows xxxInsertMenuItem Out-Of-Bounds Access Privilege Escalation Vulnerability

ZDI-16-453
ZDI-CAN-3767

CVE ID	CVE-2016-3308
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows
VULNERABILITY DETAILS	This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of menu items. The issue lies in the failure to account for a special case in which there is ambiguity as to whether a specified menu item resides on a menu or on a submenu. An attacker can leverage this vulnerability to escalate privileges and execute code within the context of SYSTEM.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/library/security/MS16-098
DISCLOSURE TIMELINE	2016-05-09 - Vulnerability reported to vendor 2016-08-09 - Coordinated public release of advisory
CREDIT	Peter(Keen) and ZeguangZhao(team509)

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